Walk through the MR discussions related to your user

Description

When working on the release post, it's always a mess to find where discussions that still require your attention are located. That's mainly because of two factors:

1. discussions can be expanded or collapsed
2. jumping between unresolved discussions is not optimal if there are a lot of discussions still running

Proposal

Do something similar to Jump to the next unresolved discussion that brings you only to your discussions. Definition of your could be discussions that you started, discussions that mention you, discussions that you already commented, or any combination of the above.

A more extreme approach could be having tabs for "your unresolved discussions" that just shows them. Or even, "show only unresolved discussions".

I hope the need is clear, solution is still to be defined.